The e3-1270v3 will be the same performance as the 4770k. They are the same speed and same architecture, in fact every spec affecting performance is the same. The differences are igpu, price and features like ecc ram capability, vt-d and the ability to oc. The link you provided is not reliable. It's a user submitted score and normal people's pcs have too many uncontrolled variables. Since it is user submitted, it can also be modified. To alleviate these issues, they average multiple samples; unfortunately there is only 1 sample for the e3 but 348 samples for the 4770k. Another issue is that it is a synthetic benchmark which I don't prefer when you can get real world benchmarks. Different software will have different performance on the same cpu, so it is best to check benchmarks of the software you are using.
Stability is not an issue with either cpu. With the ability to oc and a similar price, the 4770k would be better for delaying a pc upgrade. But would understand if you would never oc.
The difference in noise and power between the hdds is negligible for a single pc. For servers/multi storage situations it adds up and would be a factor there. Wd red does have double the cycles but again is not a concern as a storage drive, it's not going to be heavily used.
I can currently find the 4770k cheaper than the e3 so included that in this build. Even upgrading ram and gpu, I seem to be much lower than your budget.
PCPartPicker part list:
http://pcpartpicker.com/p/1qosE
Price breakdown by merchant: http://pcpartpicker.com/p/1qosE/by_merchant/
Benchmarks: http://pcpartpicker.com/p/1qosE/benchmarks/
CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($279.99 @ Microcenter)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Microcenter)
Motherboard: Asus Z87-PRO ATX LGA1150 Motherboard ($174.99 @ Newegg)
Memory: Crucial Ballistix Sport 32GB (4 x 8GB) DDR3-1600 Memory ($239.75 @ Amazon)
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Disk ($214.99 @ NCIX US)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($85.98 @ Outlet PC)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case ($79.99 @ Newegg)
Power Supply: SeaSonic 650W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($59.99 @ Newegg)
GPU: AMD 100-505635 FirePro W5000 2GB 256-bit GDDR5 PCI Express 3.0 x16 Workstation Video Card ($424.99 @ Newegg)
Total: $1590.66
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-08-10 15:02 EDT-0400)